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Symbols found carved into 40,000-year-old artifacts may be precursor to writing

Symbols and markings carved into tools and figurines by Stone Age humans over 40,000 years ago could be an ancient precursor to writing, according to a new analysis.

25/02/2026

From frog saunas to medicated baths: Scientists battle a global amphibian plague

EDITOR’S NOTE:  Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions.

25/02/2026

World’s largest coral colony discovered off Australian coast by mother-daughter team

A mother-and-daughter team of citizen scientists has identified the world’s largest known coral colony, found on the Great Barrier Reef off the coast of Australia.

25/02/2026

AI nerves are fraying. Anthropic keeps doubling down

Just weeks after its new AI tools for the office shook software stocks, Anthropic is pushing even deeper into the workplace.

24/02/2026

NASA opts to roll back moon rocket and delay crew’s historic trip into deep space

Efforts to get NASA’s historic moon mission off the ground have stalled once again, as engineers navigate a new issue with the rocket set to propel four astronauts on an unprecedented path.

24/02/2026

Saturn’s rings and largest moon may have formed after a cosmic collision, astronomers say

Saturn’s largest moon, Titan, is one of the solar system’s oddities. Now, researchers have unlocked key insights about this mysterious moon, including how it came to be. The answer may also shed light on the origin of Saturn’s beautiful rings.

23/02/2026

Lunar mysteries: Returning to the moon could answer several big questions

When NASA’s Artemis II mission embarks on a 10-day journey around the moon, the crew may glimpse features on the lunar surface that no other human has seen with the naked eye.

21/02/2026

Ancient bacteria found frozen in ice may help scientists in fight against superbugs

In the depths of Scarisoara cave in Romania sits one of the world’s biggest underground glaciers, a monumental slab of ice the size of roughly 40 Olympic swimming pools that began to form around 13,000 years ago.

20/02/2026

Mummified cheetahs found in Saudi Arabia caves could help reintroduction efforts

When scientists with the National Center for Wildlife in Saudi Arabia were surveying caves in search of wildlife in 2022 and 2023, they came across something unexpected: seven naturally mummified cheetahs in five caves near the northern city of Arar.

20/02/2026

No one can agree on whether AI is the next big thing or all hype. Here’s why

AI is either your most helpful coworker, a glorified search engine or vastly overrated depending on who you ask.

19/02/2026

2026’s first solar eclipse: What to know about the event

A “ring of fire” solar eclipse on Tuesday will mark the first eclipse of 2026, but only about 2% of the world’s population will get to see it, according to Time and Date.

16/02/2026